What airlines fly to Ontario?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Ontario from Ohio according to our data. United Airlines is the first choice among our users, with 43% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 9 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to Ontario?

Average flight duration from Ohio to Ontario depends on which airport you fly into and out of. Flying from Cincinnati to Los Angeles is 4h 30m on average, while flying from Columbus to Los Angeles is 4h 51m on average. Los Angeles is the most popular airport in Ontario.

What is the cheapest airline that flies from Ohio to Ontario?

Frontier, Delta, and Southwest are the most popular carriers operating from Ohio to Ontario

When did momondo last update prices for flights from Ohio to Ontario Airport?

Prices for flights from Ohio to Ontario Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Ohio to Ontario Airport?

As of August 2026, there are 5 operators available to choose from for flights from Ohio to Ontario Airport.

How old do you have to be to fly from Ohio to Ontario Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ohio to Ontario Airport.

What documentation or ID do you need to fly to Ontario Airport?

The required travel and health documents for your Ontario Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$124 Cheap Flights from Ohio to Ontario in 2026

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Find the cheapest flights from Ohio to Los Angeles

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Cheap round-trip flights

Enter your travel dates to find the best prices.

10:29 pm - 7:12 amDTW Detroit Metropolitan Wayne County-ONT Ontario

11h 43m1 stop Dallas/Fort Worth

10:48 am - 9:03 pmONT Ontario-DTW Detroit Metropolitan Wayne County

7h 15m1 stop Dallas/Fort Worth

$246Frontier

Tue, Oct 20 - Wed, Oct 28

10:37 am - 6:16 pmDTW Detroit Metropolitan Wayne County-ONT Ontario

10h 39m1 stop Dallas/Fort Worth

7:46 pm - 8:23 pmONT Ontario-DTW Detroit Metropolitan Wayne County

21h 37m1 stop Dallas/Fort Worth

$248Frontier

Wed, Sep 16 - Mon, Sep 21

8:27 pm - 11:50 pmCMH Columbus-ONT Ontario

6h 23m1 stop Denver Intl

3:07 pm - 5:08 amONT Ontario-CMH Columbus

11h 01m1 stop Seattle/Tacoma Intl

$309Multiple Airlines

Mon, Aug 31 - Tue, Sep 1

1:05 pm - 6:35 pmCVG Cincinnati Cinci./N. Kentucky-ONT Ontario

8h 30m1 stop Austin Bergstrom

7:30 am - 5:00 pmONT Ontario-CVG Cincinnati Cinci./N. Kentucky

6h 30m1 stop Austin Bergstrom

$318Southwest

Wed, Oct 7 - Tue, Oct 20

8:40 am - 2:50 pmCVG Cincinnati Cinci./N. Kentucky-ONT Ontario

9h 10m2 stops Chicago Midway Sacramento Intl

10:05 am - 6:50 pmONT Ontario-CVG Cincinnati Cinci./N. Kentucky

5h 45m1 stop Denver Intl

$324Southwest

Thu, Dec 3 - Mon, Dec 7

5:48 pm - 11:24 pmCMH Columbus-ONT Ontario

8h 36m1 stop Seattle/Tacoma Intl

6:15 am - 3:35 pmONT Ontario-CMH Columbus

6h 20m1 stop Denver Intl

$327Multiple Airlines

Thu, Sep 17 - Wed, Sep 23

5:39 pm - 10:23 pmPIT Pittsburgh-ONT Ontario

7h 44m1 stop Salt Lake City

12:00 pm - 11:34 pmONT Ontario-PIT Pittsburgh

8h 34m1 stop Atlanta Hartsfield-Jackson

$355Delta

Sat, Sep 5 - Sun, Sep 6

3:22 pm - 9:59 pmDAY Dayton-ONT Ontario

9h 37m1 stop Atlanta Hartsfield-Jackson

12:00 pm - 11:14 pmONT Ontario-DAY Dayton

8h 14m1 stop Atlanta Hartsfield-Jackson

$359Delta

Mon, Dec 14 - Thu, Jan 7

6:24 pm - 10:37 pmPIT Pittsburgh-ONT Ontario

7h 13m1 stop Dallas/Fort Worth

12:37 pm - 10:59 pmONT Ontario-PIT Pittsburgh

7h 22m1 stop Dallas/Fort Worth

$365American Airlines

Tue, Sep 22 - Tue, Sep 29

7:00 am - 11:47 amPIT Pittsburgh-ONT Ontario

7h 47m1 stop Dallas/Fort Worth

6:15 am - 9:30 pmONT Ontario-PIT Pittsburgh

12h 15m2 stops Phoenix Sky Harbor Intl Chicago O'Hare Intl

$383American Airlines

Tue, Sep 22 - Tue, Sep 29

Cheap last minute flights

Enter your travel dates to find the best prices.

8:34 pm - 11:50 pmCVG Cincinnati Cinci./N. Kentucky-ONT Ontario

6h 16m1 stop Denver Intl

8:24 pm - 6:47 amONT Ontario-CVG Cincinnati Cinci./N. Kentucky

7h 23m1 stop Las Vegas Harry Reid Intl

$346Frontier

Thu, Aug 13 - Thu, Sep 17

8:22 pm - 8:03 amCLE Cleveland Hopkins Intl-ONT Ontario

14h 41m1 stop Las Vegas Harry Reid Intl

6:00 am - 3:47 pmONT Ontario-CLE Cleveland Hopkins Intl

6h 47m1 stop Denver Intl

$356Frontier

Tue, Aug 11 - Tue, Aug 18

6:00 am - 6:16 pmCAK Akron/Canton-ONT Ontario

15h 16m2 stops Chicago O'Hare Intl San Francisco

11:00 am - 11:58 pmONT Ontario-CAK Akron/Canton

9h 58m2 stops San Francisco Chicago O'Hare Intl

$529United Airlines

Wed, Aug 12 - Sat, Aug 15

7:00 am - 1:09 pmCMH Columbus-ONT Ontario

9h 09m1 stop Seattle/Tacoma Intl

6:00 am - 7:42 pmONT Ontario-CMH Columbus

10h 42m1 stop Denver Intl

$566Multiple Airlines

Thu, Aug 13 - Wed, Aug 19

8:45 am - 6:16 pmCAK Akron/Canton-ONT Ontario

12h 31m2 stops Chicago O'Hare Intl San Francisco

7:00 am - 5:29 pmONT Ontario-CAK Akron/Canton

7h 29m1 stop Chicago O'Hare Intl

$570United Airlines

Wed, Aug 12 - Sat, Aug 15

3:22 pm - 11:50 pmCMH Columbus-ONT Ontario

11h 28m1 stop Denver Intl

5:26 pm - 5:40 amONT Ontario-CMH Columbus

9h 14m1 stop Seattle/Tacoma Intl

$570Multiple Airlines

Wed, Aug 12 - Fri, Aug 14

9:30 am - 6:15 pmCLE Cleveland Hopkins Intl-ONT Ontario

11h 45m2 stops Charlotte Douglas Phoenix Sky Harbor Intl

10:29 am - 10:34 pmONT Ontario-CLE Cleveland Hopkins Intl

9h 05m1 stop Dallas/Fort Worth

$660American Airlines

Fri, Aug 14 - Tue, Aug 18

5:15 am - 12:03 pmCLE Cleveland Hopkins Intl-ONT Ontario

9h 48m2 stops Chicago O'Hare Intl Phoenix Sky Harbor Intl

6:15 am - 9:00 pmONT Ontario-CLE Cleveland Hopkins Intl

11h 45m2 stops Phoenix Sky Harbor Intl Charlotte Douglas

$665American Airlines

Fri, Aug 14 - Tue, Aug 18

9:30 am - 5:50 pmCMH Columbus-ONT Ontario

11h 20m2 stops San Diego Sacramento Intl

5:15 am - 10:30 pmONT Ontario-CMH Columbus

14h 15m2 stops Phoenix Sky Harbor Intl Austin Bergstrom

$837Southwest

Fri, Aug 14 - Mon, Aug 17

7:05 am - 1:25 pmCVG Cincinnati Cinci./N. Kentucky-ONT Ontario

9h 20m2 stops Nashville Intl Phoenix Sky Harbor Intl

5:35 am - 6:40 pmONT Ontario-CVG Cincinnati Cinci./N. Kentucky

10h 05m2 stops Phoenix Sky Harbor Intl Denver Intl

$1,007Southwest

Thu, Aug 13 - Sun, Aug 16

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Alaska Airlines flights from Ohio to Ontario

Our best Alaska Airlines deals on Ohio to Ontario flight tickets

Alaska Airlines

Sep 15

CMH7:02 amColumbus

10h 14m

1 stop

ONT2:16 pmOntario

Sep 19

ONT3:14 pmOntario

10h 54m

1 stop

CMH5:08 amColumbus

$413

Alaska Airlines

Sep 2

PIT7:02 amPittsburgh

10h 07m

1 stop

ONT2:09 pmOntario

Sep 9

ONT6:02 amOntario

8h 28m

1 stop

PIT5:30 pmPittsburgh

$483

Alaska Airlines

Aug 24

PIT6:23 pmPittsburgh

19h 41m

1 stop

ONT11:04 amOntario

Aug 31

ONT3:07 pmOntario

11h 17m

1 stop

PIT5:24 amPittsburgh

$499

Frontier flights from Ohio to Ontario

Our best Frontier deals on Ohio to Ontario flight tickets

Frontier

Oct 20

DTW10:29 pmDetroit Metropolitan Wayne County

11h 43m

1 stop

ONT7:12 amOntario

Oct 28

ONT10:48 amOntario

7h 15m

1 stop

DTW9:03 pmDetroit Metropolitan Wayne County

$246

Frontier

Sep 16

DTW10:37 amDetroit Metropolitan Wayne County

10h 39m

1 stop

ONT6:16 pmOntario

Sep 21

ONT7:46 pmOntario

21h 37m

1 stop

DTW8:23 pmDetroit Metropolitan Wayne County

$248

Frontier

Oct 19

DTW10:29 pmDetroit Metropolitan Wayne County

11h 43m

1 stop

ONT7:12 amOntario

Oct 21

ONT8:07 amOntario

10h 27m

1 stop

DTW9:34 pmDetroit Metropolitan Wayne County

$249

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DetroitOntario

DTW Detroit Metropolitan Wayne County - ONT Ontario

DTWONT

Detroit Metropolitan Wayne County

Tue 10/20

10:29 pm-7:12 am

1 stop11h 43m

Ontario

Wed 10/28

10:48 am-9:03 pm

1 stop7h 15m

$246

DetroitOntario

DTW Detroit Metropolitan Wayne County - ONT Ontario

DTWONT

Detroit Metropolitan Wayne County

Wed 9/16

10:37 am-6:16 pm

1 stop10h 39m

Ontario

Mon 9/21

7:46 pm-8:23 pm

1 stop21h 37m

$248

ColumbusOntario

CMH Columbus - ONT Ontario

CMHONT

Columbus

Mon 8/31

8:27 pm-11:50 pm

1 stop6h 23m

Ontario

Tue 9/1

3:07 pm-5:08 am

1 stop11h 01m

$309

CincinnatiOntario

CVG Cincinnati Cinci./N. Kentucky - ONT Ontario

CVGONT

Cincinnati Cinci./N. Kentucky

Wed 10/7

1:05 pm-6:35 pm

1 stop8h 30m

Ontario

Tue 10/20

7:30 am-5:00 pm

1 stop6h 30m

$318

CincinnatiOntario

CVG Cincinnati Cinci./N. Kentucky - ONT Ontario

CVGONT

Cincinnati Cinci./N. Kentucky

Thu 12/3

8:40 am-2:50 pm

2 stops9h 10m

Ontario

Mon 12/7

10:05 am-6:50 pm

1 stop5h 45m

$324

ColumbusOntario

CMH Columbus - ONT Ontario

CMHONT

Columbus

Thu 9/17

5:48 pm-11:24 pm

1 stop8h 36m

Ontario

Wed 9/23

6:15 am-3:35 pm

1 stop6h 20m

$327

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Sat 9/5

5:39 pm-10:23 pm

1 stop7h 44m

Ontario

Sun 9/6

12:00 pm-11:34 pm

1 stop8h 34m

$355

DaytonOntario

DAY Dayton - ONT Ontario

DAYONT

Dayton

Mon 12/14

3:22 pm-9:59 pm

1 stop9h 37m

Ontario

Thu 1/7

12:00 pm-11:14 pm

1 stop8h 14m

$359

Quickest round-trip

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Tue 9/22

6:24 pm-10:37 pm

1 stop7h 13m

Ontario

Tue 9/29

12:37 pm-10:59 pm

1 stop7h 22m

$365

PittsburghOntario

PIT Pittsburgh - ONT Ontario

PITONT

Pittsburgh

Tue 9/22

7:00 am-11:47 am

1 stop7h 47m

Ontario

Tue 9/29

6:15 am-9:30 pm

2 stops12h 15m

$383

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ohio to Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Ontario?

In general, September is the cheapest month to fly from Ohio to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $362. If you aren’t able to travel during the month of September, then book flights to Ontario from Ohio during January instead. Flights to Ontario in January, while not as cheap as those in September, still average around $378.

How far in advance should I book a flight from Ohio to Ontario?

You are more likely to see cheaper flights to Ontario from Ohio when booking weeks ahead of your departure date. In general, you can expect to find flights to Ontario for around $426 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ontario from Ohio for as low as $308 on momondo.

Can stopping save me money on Ohio to Ontario flights?

You could potentially save up to 35% on your flight if you consider stops on a Ohio to Ontario flight.

Cheap Ohio to Ontario flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ohio to Ontario

Fastest flight time	6h 12m
Direct flights	None

The fastest flight from Ohio to Ontario takes 6h 12m

There are no direct flights from Ohio to Ontario. There are no popular flight routes from Ohio to Ontario.

Search flight deals

Frequently asked questions about flying from Ohio to Ontario

When did momondo last update prices for flights from Ohio to Ontario Airport?
Prices for flights from Ohio to Ontario Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Ohio to Ontario Airport?
As of August 2026, there are 5 operators available to choose from for flights from Ohio to Ontario Airport.
How old do you have to be to fly from Ohio to Ontario Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Ohio to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The required travel and health documents for your Ontario Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ontario Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Ohio to Ontario

Compare and see reviews for airlines that fly from Ohio to Ontario with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $129	Free Cancellation	Rating 5.6 2,715 reviews	Search Frontier flights
Delta	PriceFrom $179	Free Cancellation	Rating 7.8 8,497 reviews	Search Delta flights
United Airlines	PriceFrom $268	Free Cancellation	Rating 7.4 10,097 reviews	Search United Airlines flights
American Airlines	PriceFrom $299	Free Cancellation	Rating 7.1 11,897 reviews	Search American Airlines flights
Southwest	PriceFrom $315	Free Cancellation	Rating 8.0 4,214 reviews	Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Ohio to Ontario?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ohio to Ontario. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Ohio to Ontario with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Ontario from Ohio with this policy.

How can momondo help me find flights from Ohio to Ontario?

momondo helps you find the best flight between Ohio and Ontario by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Ohio to Ontario right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ohio to Ontario now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Ontario and let you know when they change.

An easier way to manage your Ontario trip

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Cheap flights from Ohio to Los Angeles from $124

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ohio to Los Angeles departing on 9/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Alaska Airlines flights from Ohio to Ontario

Our best Alaska Airlines deals on Ohio to Ontario flight tickets

Frontier flights from Ohio to Ontario

Our best Frontier deals on Ohio to Ontario flight tickets

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How to get the cheapest flight ticket from Ohio to Ontario

What is the cheapest month to fly to Ontario?

How far in advance should I book a flight from Ohio to Ontario?

Can stopping save me money on Ohio to Ontario flights?

What is the cheapest airline that flies from Ohio to Ontario?

What airlines fly to Ontario?

How long does it take to fly to Ontario?

Cheap Ohio to Ontario flight deals and tips

Fastest flight time

Direct flights

Frequently asked questions about flying from Ohio to Ontario

Best airlines flying from Ohio to Ontario

Compare and see reviews for airlines that fly from Ohio to Ontario with momondo

Why use momondo?

An easier way to manage your Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing California

Fly your favorite airline to Los Angeles

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Los Angeles

List of cabin classes available on flights landing in Los Angeles. Availability may vary depending on flight origin and airline.

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